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	<div id="winchm_template_title">!wdfkd.wdfdevice</div>
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	<div id="winchm_template_content"><div id="mainSection"><p>The <b>!wdfkd.wdfdevice</b> extension displays information that is associated with a WDFDEVICE-typed object handle.</p>
<pre class="syntax"><b>!wdfkd.wdfdevice </b><i>Handle</i><b> </b>[<i>Flags</i>]</pre>
<h2><a id="Parameters"></a><a id="parameters"></a><a id="PARAMETERS"></a>Parameters</h2>
<p></p>
<dl>
<dt><a id="_______Handle______"></a><a id="_______handle______"></a><a id="_______HANDLE______"></a>       <i>Handle</i>      </dt>
<dd>
<p>A handle to a WDFDEVICE-typed object.</p>
</dd>
<dt><a id="_______Flags______"></a><a id="_______flags______"></a><a id="_______FLAGS______"></a>       <i>Flags</i>      </dt>
<dd>
<p>Optional. The kind of information to display. <i>Flags</i> can be any combination of the following bits:</p>
<p></p>
<dl>
<dt><a id="Bit_0__0x1_"></a><a id="bit_0__0x1_"></a><a id="BIT_0__0X1_"></a>Bit 0 (0x1)</dt>
<dd>
<p>The display will include verbose information about the device, such as the associated WDFCHILDLIST-typed handles, synchronization scope, and execution level.</p>
</dd>
<dt><a id="Bit_1__0x2_"></a><a id="bit_1__0x2_"></a><a id="BIT_1__0X2_"></a>Bit 1 (0x2)</dt>
<dd>
<p>The display will include detailed power state information. </p>
</dd>
<dt><a id="Bit_2__0x4_"></a><a id="bit_2__0x4_"></a><a id="BIT_2__0X4_"></a>Bit 2 (0x4)</dt>
<dd>
<p>The display will include detailed power policy state information. </p>
</dd>
<dt><a id="Bit_3__0x8_"></a><a id="bit_3__0x8_"></a><a id="BIT_3__0X8_"></a>Bit 3 (0x8)</dt>
<dd>
<p>The display will include detailed Plug and Play (PnP) state information. </p>
</dd>
<dt><a id="Bit_4__0x10_"></a><a id="bit_4__0x10_"></a><a id="BIT_4__0X10_"></a>Bit 4 (0x10)</dt>
<dd>
<p>The display will include the device object's callback functions. </p>
</dd>
</dl>
</dd>
</dl>
<h3><a id="DLL"></a><a id="dll"></a>DLL</h3>
<p>
       Wdfkd.dll
      </p>
<h3><a id="Frameworks"></a><a id="frameworks"></a><a id="FRAMEWORKS"></a>Frameworks</h3>
<p>
       KMDF 1, UMDF 2</p>
<h3><a id="Additional_Information"></a><a id="additional_information"></a><a id="ADDITIONAL_INFORMATION"></a>Additional Information</h3>
<p>For more information, see <a href="#Bookmark1419">Kernel-Mode Driver Framework Debugging</a>.</p>
<h2>Remarks</h2>
<p>The following example uses the <b>!wdfkd.wdfdevice</b> extension on a WDFDEVICE handle that represents a physical device object (PDO), without specifying any flags.</p>
<div class="code"><span codelanguage=""><table>
<tr>
<th></th>
</tr>
<tr>
<td>
<pre>kd&gt; !wdfdevice 0x7cad31c8 

Dumping WDFDEVICE 0x7cad31c8
=================================

WDM PDEVICE_OBJECTs:  self 81fb00e8

Pnp state:  119 ( WdfDevStatePnpStarted )
Power state:  31f ( WdfDevStatePowerDx )
Power Pol state:  508 ( WdfDevStatePwrPolWaitingUnarmed )

Parent WDFDEVICE 7ca7b1c0
Parent states:
   Pnp state:  119 ( WdfDevStatePnpStarted )
   Power state:  307 ( WdfDevStatePowerD0 )
   Power Pol state:  565 ( WdfDevStatePwrPolStarted )

No pended pnp or power irps
Device is the power policy owner for the stack</pre>
</td>
</tr>
</table></span></div>
<p>The following example displays the same device object as the preceding example, but this time with a flag value of 0xF.  This flag value, a combination of the bits 0x1, 0x2, 0x4, and 0x8, causes the display to include verbose device information, power state information, power policy state information, and PnP state information.</p>
<div class="code"><span codelanguage=""><table>
<tr>
<th></th>
</tr>
<tr>
<td>
<pre>kd&gt; !wdfdevice 0x7cad31c8 f 

Dumping WDFDEVICE 0x7cad31c8
=================================

WDM PDEVICE_OBJECTs:  self 81fb00e8

Pnp state:  119 ( WdfDevStatePnpStarted )
Power state:  31f ( WdfDevStatePowerDx )
Power Pol state:  508 ( WdfDevStatePwrPolWaitingUnarmed )

Parent WDFDEVICE 7ca7b1c0
Parent states:
   Pnp state:  119 ( WdfDevStatePnpStarted )
   Power state:  307 ( WdfDevStatePowerD0 )
   Power Pol state:  565 ( WdfDevStatePwrPolStarted )

No pended pnp or power irps
Device is the power policy owner for the stack

Pnp state history:
[0] WdfDevStatePnpObjectCreated (0x100)
[1] WdfDevStatePnpInit (0x105)
[2] WdfDevStatePnpInitStarting (0x106)
[3] WdfDevStatePnpHardwareAvailable (0x108)
[4] WdfDevStatePnpEnableInterfaces (0x109)
[5] WdfDevStatePnpStarted (0x119)

Power state history:
[0] WdfDevStatePowerD0StartingConnectInterrupt (0x310)
[1] WdfDevStatePowerD0StartingDmaEnable (0x311)
[2] WdfDevStatePowerD0StartingStartSelfManagedIo (0x312)
[3] WdfDevStatePowerDecideD0State (0x313)
[4] WdfDevStatePowerD0BusWakeOwner (0x309)
[5] WdfDevStatePowerGotoDx (0x31a)
[6] WdfDevStatePowerGotoDxIoStopped (0x31c)
[7] WdfDevStatePowerDx (0x31f)

Power policy state history:
[0] WdfDevStatePwrPolStarting (0x501)
[1] WdfDevStatePwrPolStartingSucceeded (0x502)
[2] WdfDevStatePwrPolStartingDecideS0Wake (0x504)
[3] WdfDevStatePwrPolStartedIdleCapable (0x505)
[4] WdfDevStatePwrPolTimerExpiredNoWake (0x506)
[5] WdfDevStatePwrPolTimerExpiredNoWakeCompletePowerDown (0x507)
[6] WdfDevStatePwrPolWaitingUnarmedQueryIdle (0x509)
[7] WdfDevStatePwrPolWaitingUnarmed (0x508)

WDFCHILDLIST Handles:
 !WDFCHILDLIST 0x7ce710c8

SyncronizationScope is WdfSynchronizationScopeNone
ExecutionLevel is WdfExecutionLevelDispatch</pre></td></tr></table></span></div></div></div>	
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